KR8-CNB Self-Aligning Plain Bearing

Comprehensive specifications and application details for: KR8-CNB Self-Aligning Plain Bearing.

Summary

Explore detailed summary information for bearing: KR8-CNB. Includes NSN, classification group, and identification codes to support sourcing, compliance, and accurate part tracking.

Part Number: KR8-CNB
Federal Supply Classification: 3120 Unmounted Plain Bearings
(NSN) National Stock Number: 3120-01-027-4729
Item Name Code: 13208
Federal Item Identification Guide: A045A0
Assigment Date: 09/18/1976

A detachable assembly in or on which a journal, gudgeon, pivot, or the like moves. It is used to carry a load and to reduce sliding friction. It does not employ rolling elements. The item consists of a bored precision ground ball (or spherical plain bearing) around which an outer ring is fitted. The assembly may be either separable or nonseparable. Excludes:bearing, plain, rod end and bearing, plain, spherical.

0.4980 inches minimum and 0.5000 inches maximum inner member width, 28.0 rockwell c minimum and 37.0 rockwell c maximum outer race member hardness rating, 55.0 rockwell c minimum and 62.0 rockwell c maximum inner member hardness rating, 0.4995 inches minimum and 0.5000 inches maximum bore diameter, plastic polytetrafluoroethylene race liner material

Datasheet

Below are the comprehensive technical specifications for bearing: 3120-01-027-4729 . Find dimensions, materials, tolerances, performance characteristics, etc.

Bore Diameter: 0.4995 inches minimum and 0.5000 inches maximum
Hardness Rating: 55.0 rockwell c minimum and 62.0 rockwell c maximum inner member
Hardness Rating: 28.0 rockwell c minimum and 37.0 rockwell c maximum outer race member
Inner Member Width: 0.4980 inches minimum and 0.5000 inches maximum
Material: plastic polytetrafluoroethylene race liner
Material: steel comp 440c inner member
Material: steel comp 630 outer race member
Outer Member Outside Diameter: 0.9995 inches minimum and 1.0000 inches maximum
Outer Member Width: 0.3850 inches minimum and 0.3950 inches maximum
Static Radial Load Rating: 17900 pounds
Style Designator: with insert and/or liner

Replaces

The NSN 3120-01-027-4729 is used in place of the following discontinued or alternate items:

NSN	Name	Date
3120-00-068-7853	No Name Available	06/01/1990
3120-00-275-3340	No Name Available	05/01/1988
3120-00-404-5792	No Name Available	09/01/1983
3120-00-450-5935	No Name Available	12/01/1987
3120-00-482-8856	No Name Available	07/01/1992
3120-00-727-4294	No Name Available	02/01/1985
3120-00-788-0920	No Name Available	12/01/1985
3120-00-880-8393	No Name Available	03/01/1988
3120-01-358-9598	No Name Available	08/01/1994

Frequently Asked Questions

Find quick answers to common questions about bearing: KR8-CNB. Explore technical specifications, installation tips, maintenance guidelines, regulatory requirements, and troubleshooting advice.

What is the FSCG of the NSN 3120-01-027-4729?: The FSCG of the NSN 3120-01-027-4729 is 3120

Does the NSN 3120-01-027-4729 have a Schedule B code assigned?: Yes, the Schedule B code is 8482300040

Does NSN 3120-01-027-4729 require demilitarization?: Items subject to the export administration regulations (ear) in parts 730-774 of title 15, code of federal regulations (cfr) (ccli or ear99) and determined by dod to present a low risk when released out of dod control. No demil, mut, or end use certificate is required. May require an export licensefrom doc.

Does NSN 3120-01-027-4729 contain precious materials?: Item does not contain precious metal.

Does NSN 3120-01-027-4729 contain hazardous materials?: Indicates there is no data in the hmirs and the nsn is in a fsc not generally suspected of containing hazardous materials.